> For the complete documentation index, see [llms.txt](https://docs.facephi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.facephi.com/docs.facephi-en/sdks/sdk-web/componentes/sdk-provider/propiedades/customerid.md).

# customerId

## Details

**Attribute:** `customer-id`

**Type:** `string`

**Default value:** `undefined`

## Morphology

```typescript
provider.customerId = 'user-7f3a9c21';
```

## Description

Identifier of the user or client associated with the Tracking operation in `facephi-sdk-provider` (internal ID, email, etc.).

***

## Example

```jsx
<facephi-sdk-provider
    apikey={process.env.FACEPHI_SDK_APIKEY}
    customerId={'user-7f3a9c21'}
/>
```